US Bridges

Ramp on I-26 EB over I-26&US 78 & RR CSXT

Good

Charleston County, South Carolina · North Charleston · Structure no. 000000000010507

Built
2020
5 years old
Condition
Good
inspected January 2025
Type
Stringer/Multi-beam or Girder
Steel Continuous
Length
1,308 ft
7 main spans
Daily traffic
1,750
2023 count
Owner
State
State Highway Agency

About this bridge

Ramp on I-26 EB over I-26&US 78 & RR CSXT is a steel continuous stringer/multi-beam or girder carrying Ramp on I-26 EB over I-26&US 78 & RR CSXT in Charleston County, South Carolina. It was built in 2020, so it is 5 years old, younger than the South Carolina average of 48 years.

The most recent inspection reported to the Federal Highway Administration rates it in good condition with a lowest component rating of 7 out of 9. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

It carries about 1,750 vehicles a day, roughly 8% of them trucks, projected to reach 4,078 by 2043. The structure is 1,308 ft (398.8 m) long and 35 ft wide. If it were closed, the detour would be 1.2 mi (2 km).

Location

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CarriesRamp on I-26 EB
CrossesI-26&US 78 & RR CSXT
LocationNorth Charleston
RouteInterstate 26
CountyCharleston County
StateSouth Carolina
Coordinates32.83287, -79.95769
Functional classUrban Principal Arterial - Interstate

Condition and inspection

Good

All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure8 Very GoodNo problems noted.
Substructure8 Very GoodNo problems noted.
Last inspectionJanuary 2025
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourBridge not over waterway
Structural evaluation7: Better than present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Approach roadway alignment6: Equal to present minimum criteria
Operating rating46.1 US tons
Inventory rating35.4 US tons

Structure

Structure typeStringer/Multi-beam or Girder
MaterialSteel Continuous
DeckConcrete, cast-in-place
Main spans7
Design loadHL 93
Structure length1,308 ft (398.8 m)
Longest span217 ft (66.1 m)
Deck width35 ft (10.7 m)
Roadway width32 ft (9.8 m)
Vertical clearance over deck18 ft (5.6 m)

Traffic and service

Average daily traffic1,750 (2023)
Projected traffic4,078 by 2043
Trucks8%
Lanes on structure1
Traffic directionOne-way traffic
CarriesOverpass structure at an interchange
CrossesHighway and railroad
Detour if closed1.2 mi (2 km)
TollOn a free road
National Highway SystemYes
Strategic Highway NetworkInterstate STRAHNET route

Ownership and planned work

OwnerState Highway Agency
Maintained byState Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNot applicable (no waterway)

Frequently asked questions

When was Ramp on I-26 EB over I-26&US 78 & RR CSXT built?

It was built in 2020, making it 5 years old in 2025.

What condition is Ramp on I-26 EB over I-26&US 78 & RR CSXT in?

The National Bridge Inventory rates it in good condition. All primary components (deck, superstructure, substructure, or culvert) are rated 7 or higher. No significant problems were noted. The last reported inspection was in January 2025.

How much traffic does Ramp on I-26 EB over I-26&US 78 & RR CSXT carry?

About 1,750 vehicles per day (2023 count), of which roughly 8% are trucks.

How long is Ramp on I-26 EB over I-26&US 78 & RR CSXT?

The structure is 1,308 ft (398.8 m) long with a longest span of 217 ft (66.1 m) and a deck 35 ft wide.

Who owns Ramp on I-26 EB over I-26&US 78 & RR CSXT?

It is owned by the State Highway Agency.